IRONWOOD PHARMACEUTICALS INC (IRWD) Stock Ownership

USA • Nasdaq • NASDAQ:IRWD • US46333X1081

4.89 USD
+0.03 (+0.62%)
At close: Jan 30, 2026
4.9858 USD
+0.1 (+1.96%)
After Hours: 1/30/2026, 8:00:02 PM
IRWD Ownership Chart.IRWD Ownership Chart: showing Insider, Institutional ownership and shares available to the public.IRWD Ownership.InsiderInstitutionalPublic



Shares Outstanding162.68M
Float157.95M
Float Short Interest Percentage5.16%
Owners (insider)2.66%
Owners (institutional)93.44%
Owners (insider) change-0.32%
Owners (institutional) change-0.59%
IRWD Institutional Ownership HistoryIRWD Institutional Ownership HistoryIRWD Institutional Ownership History Sep 2021 Mar 2022 Sep 2022 Mar 2023 Sep 2023 Mar 2024 Sep 2024 Mar 2025 Sep 2025 50M 100M 150M
IRWD Historical Insider Transactions ChartIRWD Historical Insider Buy and Sell Transactions ChartIRWD Historical Insider Transactions Mar 2025 Apr 2025 May 2025 Jun 2025 Jul 2025 Aug 2025 Sep 2025 Oct 2025 Nov 2025 Dec 2025 Jan 2026 Feb 2026 0 100K 200K 300K 400K 500K
Date Name Type Shares Price Amount
Jan 5, 2026 Silver Ronald Open Market Sale 35416 4.60 $ 162,913.60
Dec 15, 2025 DENNER ALEXANDER J Grant 4178 0.00 $ 0.00
Dec 15, 2025 Sarissa Capital Management LP Grant 4178 0.00 $ 0.00
Nov 17, 2025 Gaskins Tammi L Open Market Sale 6016 3.32 $ 19,973.12
Sep 15, 2025 DENNER ALEXANDER J Grant 11718 0.00 $ 0.00
Aug 11, 2025 Gaskins Tammi L Open Market Sale 1316 0.84 $ 1,105.44
Aug 11, 2025 Martini Gregory S. Open Market Sale 1265 0.84 $ 1,062.60
Aug 11, 2025 Silver Ronald Open Market Sale 2846 0.84 $ 2,390.64
Aug 11, 2025 John Minardo Open Market Sale 7754 0.84 $ 6,513.36
Jun 13, 2025 DENNER ALEXANDER J Grant 24193 0.00 $ 0.00
Jun 13, 2025 Sarissa Capital Management LP Grant 24193 0.00 $ 0.00
Jun 10, 2025 Shepard Jay Grant 45000 0.00 $ 0.00
Jun 10, 2025 Kessler Marla L Grant 45000 0.00 $ 0.00
Jun 10, 2025 Moukheibir Catherine Grant 45000 0.00 $ 0.00
Jun 10, 2025 Duane Jon R Grant 45000 0.00 $ 0.00
Jun 10, 2025 McHugh Julie Grant 45000 0.00 $ 0.00
Jun 10, 2025 Currie Mark G Grant 45000 0.00 $ 0.00
Jun 10, 2025 Dreyfus Andrew Grant 45000 0.00 $ 0.00
Jun 10, 2025 DENNER ALEXANDER J Grant 45000 0.00 $ 0.00
Jun 10, 2025 Sarissa Capital Management LP Grant 45000 0.00 $ 0.00
May 20, 2025 MCCOURT Thomas A Grant 540000 0.00 $ 0.00
May 16, 2025 MCCOURT Thomas A Open Market Sale 13353 0.58 $ 7,744.74
May 16, 2025 Gaskins Tammi L Open Market Sale 2563 0.58 $ 1,486.54
Apr 2, 2025 DENNER ALEXANDER J Grant 10416 0.00 $ 0.00
Apr 2, 2025 Sarissa Capital Management LP Grant 10416 0.00 $ 0.00
Feb 10, 2025 MCCOURT Thomas A Open Market Sale 139064 1.76 $ 244,752.64
Feb 10, 2025 Silver Ronald Open Market Sale 12048 1.76 $ 21,204.48
Feb 10, 2025 Shetzline Michael Grant 133333 0.00 $ 0.00
Feb 10, 2025 Shetzline Michael Open Market Sale 41269 1.76 $ 72,633.44
Feb 10, 2025 John Minardo Grant 122222 0.00 $ 0.00
Feb 10, 2025 John Minardo Open Market Sale 38938 1.76 $ 68,530.88
Feb 10, 2025 Martini Gregory S. Open Market Sale 12052 1.76 $ 21,211.52